Disclaimer: I don't own Transformers Prime.
The accident wasn't her fault. No matter what Megatron said or thought. He couldn't blame her, he shouldn't. She was his Bonded, for Primus' sake! Her brother had told quite clearly to Megatron that her Carrier Protocols were malfunctioning. Megatron should have listened. Knock Out was a medic, he knew what he was talking about, even if didn't know how to fix her. He had decided not to take the course concerning coding when he was a medical student. (He was regretting that decision now.)
Megatron should have had someone fix her Carrier Protocols before the accident happened. Their Sparkling would still be growing inside her. Then she wouldn't be depressed and in need of comfort from him. She only had her brother and his assistant/best friend to turn to, because Megatron denied her comfort and instead blamed her, and her trine mates were offline.
Hate began to grow in Starscream's Spark. She wanted Megatron to die more and more as the years went by, as all her precious Spaklings offlined before they even had the chance to live.
All the while Knock Out helplessly had to watch as his sister's grip on sanity started slipping.
AN: Okay, so. First of all, let us all pretend that Knock Out was a Seeker before Earth. Or at least had a jet or something as a alt-mode. Second, yes, I made Starscream a femme. And three, this little piece is one option out of many I have thought of, with two versions: this one and one where Megatron is actually a good hubby for Screamer.
There is a crossover involved, it just doesn't show in here. If I ever decide to add to this I might add it. For now this just a angsty one shot.
Remember to tell me what you think. :)